Transcript Welcome to the Cell

Welcome to the Cell
Chapter 2-3
Microscopes
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Microscopes --- allowed scientists to view
cells.
Cells --- The basic unit of life
Compound light microscopes --- Uses
lenses to magnify objects.
Discovery of Cells .. Important
People to Know
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Robert Hooke --- Discovered and named the
first cell
Anton van Leeuwenhoek --- Discovered
microscopic organisms in ponds.
Schleiden --- Said all plants are made of cells
Schwann --- Said all animals are made of
cells.
Virchow --- said “all cells come from cells.”
Cell Theory Parts
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3 parts to the cell theory:
 Cells are the basic unit of life
 All organisms are made of 1 or more cells
 All cells come from already existing cells